package com.thinkbiganalytics.kylo.spark.ingest;

/*-
 * #%L
 * Kylo Spark Ingest App
 * %%
 * Copyright (C) 2017 - 2018 ThinkBig Analytics
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import com.beust.jcommander.IStringConverter;

import java.util.HashMap;
import java.util.Map;

import javax.annotation.Nonnull;

/**
 * Converts a list of key/value pairs into a map.
 */
public class OptionsConverter implements IStringConverter<Map<String, String>> {

    @Nonnull
    @Override
    public Map<String, String> convert(@Nonnull final String value) {
        final Map<String, String> map = new HashMap<>();
        for (final String entry : value.split(";")) {
            if (!entry.isEmpty()) {
                final String[] parts = entry.split("=");
                map.put(parts[0], parts[1]);
            }
        }
        return map;
    }
}
